bgpd: peer action table static/const

bgpd.c: (various tables) only used in one place and are immutable.
diff --git a/bgpd/bgpd.c b/bgpd/bgpd.c
index 60722d2..d910956 100644
--- a/bgpd/bgpd.c
+++ b/bgpd/bgpd.c
@@ -2262,7 +2262,7 @@
   u_char peer_down;
 };
 
-struct peer_flag_action peer_flag_action_list[] = 
+static const struct peer_flag_action peer_flag_action_list[] =
   {
     { PEER_FLAG_PASSIVE,                  0, peer_change_reset },
     { PEER_FLAG_SHUTDOWN,                 0, peer_change_reset },
@@ -2274,7 +2274,7 @@
     { 0, 0, 0 }
   };
 
-struct peer_flag_action peer_af_flag_action_list[] = 
+static const struct peer_flag_action peer_af_flag_action_list[] =
   {
     { PEER_FLAG_NEXTHOP_SELF,             1, peer_change_reset_out },
     { PEER_FLAG_SEND_COMMUNITY,           1, peer_change_reset_out },
@@ -2295,14 +2295,14 @@
 
 /* Proper action set. */
 static int
-peer_flag_action_set (struct peer_flag_action *action_list, int size,
+peer_flag_action_set (const struct peer_flag_action *action_list, int size,
 		      struct peer_flag_action *action, u_int32_t flag)
 {
   int i;
   int found = 0;
   int reset_in = 0;
   int reset_out = 0;
-  struct peer_flag_action *match = NULL;
+  const struct peer_flag_action *match = NULL;
 
   /* Check peer's frag action.  */
   for (i = 0; i < size; i++)